Evidence of a Cenomanian shallow-marine carbonate platform in the northwestern margin of the Bortziriak-Cinco Villas massif, eastern Basque-Cantabrian Basin

Authors

DOI:

https://doi.org/10.55407/geogaceta98191

Keywords:

cenomanian, caprina adversa, transgression, post-rift, Basque-Cantabrian Basin

Abstract

Basin margin evolution of rift basins is not always well constrained. In the northeastern margin of the Basque-Cantabrian Basin, a revision of a carbonate succession permits deciphering the transition from synto post-rift phases in the poorly studied northwestern margin of the Bortziriak-Cinco Villas massif. The sedimentological analysis shows three main lithofacies, attributed to a shallow-marine, non-rimmed carbonate platform. On the other hand, biostratigraphic analysis based on the presence of Caprina adversa rudist indicates a Cenomanian age for the succession. Thus, this study illustrates the existence of a Cenomanian shallow-marine carbonate platform unconformably overlying the Palaeozoic massif. This platform development was the result of a generalized transgression during the early post-rift stage.

References

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Published

2023-12-18

How to Cite

Ladron de Guevara Aguirreche, M., Bodego, A., Iriarte, E., Troya, L., Damas-Mollá, L., & Aranburu, A. (2023). Evidence of a Cenomanian shallow-marine carbonate platform in the northwestern margin of the Bortziriak-Cinco Villas massif, eastern Basque-Cantabrian Basin. GEOGACETA, 74, 19–22. https://doi.org/10.55407/geogaceta98191

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Vol. 74 (2023): July-December

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Artículos

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Copyright (c) 2023 Martin Ladron de Guevara Aguirreche, Arantxa Bodego, Eneko Iriarte, Luis Troya, Laura Damas-Mollá, Arantza Aranburu

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